#define X86STEPPING(x)	((x) & 0x0F)#define X86MODEL(x)	(((x)>>4) & 0x0F)#define X86FAMILY(x)	(((x)>>8) & 0x0F) enum {	VectorDBG	= 1,		/* debug exception */	VectorNMI	= 2,		/* non-maskable interrupt */	VectorBPT	= 3,		/* breakpoint */	VectorUD	= 6,		/* invalid opcode exception */	VectorCNA	= 7,		/* coprocessor not available */	Vector2F	= 8,		/* double fault */	VectorCSO	= 9,		/* coprocessor segment overrun */	VectorPF	= 14,		/* page fault */	Vector15	= 15,		/* reserved */	VectorCERR	= 16,		/* coprocessor error */ 	VectorPIC	= 32,		/* external i8259 interrupts */	IrqCLOCK	= 0,	IrqKBD		= 1,	IrqUART1	= 3,	IrqUART0	= 4,	IrqPCMCIA	= 5,	IrqFLOPPY	= 6,	IrqLPT		= 7,	IrqIRQ7		= 7,	IrqAUX		= 12,		/* PS/2 port */	IrqIRQ13	= 13,		/* coprocessor on 386 */	IrqATA0		= 14,	IrqATA1		= 15,	MaxIrqPIC	= 15, 	VectorLAPIC	= VectorPIC+16,	/* local APIC interrupts */	IrqLINT0	= 16,		/* LINT[01] must be offsets 0 and 1 */	IrqLINT1	= 17,	IrqTIMER	= 18,	IrqERROR	= 19,	IrqPCINT	= 20,	IrqSPURIOUS	= 31,		/* must have bits [3-0] == 0x0F */	MaxIrqLAPIC	= 31, 	VectorSYSCALL	= 64, 	VectorAPIC	= 65,		/* external APIC interrupts */	MaxVectorAPIC	= 255,}; typedef struct Vctl {	Vctl*	next;			/* handlers on this vector */ 	char	name[KNAMELEN];		/* of driver */	int	isintr;			/* interrupt or fault/trap */	int	irq;	int	tbdf;	int	(*isr)(int);		/* get isr bit for this irq */	int	(*eoi)(int);		/* eoi */ 	void	(*f)(Ureg*, void*);	/* handler to call */	void*	a;			/* argument to call it with */} Vctl; enum {	BusCBUS		= 0,		/* Corollary CBUS */	BusCBUSII,			/* Corollary CBUS II */	BusEISA,			/* Extended ISA */	BusFUTURE,			/* IEEE Futurebus */	BusINTERN,			/* Internal bus */	BusISA,				/* Industry Standard Architecture */	BusMBI,				/* Multibus I */	BusMBII,			/* Multibus II */	BusMCA,				/* Micro Channel Architecture */	BusMPI,				/* MPI */	BusMPSA,			/* MPSA */	BusNUBUS,			/* Apple Macintosh NuBus */	BusPCI,				/* Peripheral Component Interconnect */	BusPCMCIA,			/* PC Memory Card International Association */	BusTC,				/* DEC TurboChannel */	BusVL,				/* VESA Local bus */	BusVME,				/* VMEbus */	BusXPRESS,			/* Express System Bus */}; #define MKBUS(t,b,d,f)	(((t)<<24)|(((b)&0xFF)<<16)|(((d)&0x1F)<<11)|(((f)&0x07)<<8))#define BUSFNO(tbdf)	(((tbdf)>>8)&0x07)#define BUSDNO(tbdf)	(((tbdf)>>11)&0x1F)#define BUSBNO(tbdf)	(((tbdf)>>16)&0xFF)#define BUSTYPE(tbdf)	((tbdf)>>24)#define BUSBDF(tbdf)	((tbdf)&0x00FFFF00)#define BUSUNKNOWN	(-1) enum {	MaxEISA		= 16,	CfgEISA		= 0xC80,}; /* * PCI support code. */enum {					/* type 0 & type 1 pre-defined header */	PciVID		= 0x00,		/* vendor ID */	PciDID		= 0x02,		/* device ID */	PciPCR		= 0x04,		/* command */	PciPSR		= 0x06,		/* status */	PciRID		= 0x08,		/* revision ID */	PciCCRp		= 0x09,		/* programming interface class code */	PciCCRu		= 0x0A,		/* sub-class code */	PciCCRb		= 0x0B,		/* base class code */	PciCLS		= 0x0C,		/* cache line size */	PciLTR		= 0x0D,		/* latency timer */	PciHDT		= 0x0E,		/* header type */	PciBST		= 0x0F,		/* BIST */ 	PciBAR0		= 0x10,		/* base address */	PciBAR1		= 0x14, 	PciINTL		= 0x3C,		/* interrupt line */	PciINTP		= 0x3D,		/* interrupt pin */}; /* ccrb (base class code) values; controller types */enum {	Pcibcpci1	= 0,		/* pci 1.0; no class codes defined */	Pcibcstore	= 1,		/* mass storage */	Pcibcnet	= 2,		/* network */	Pcibcdisp	= 3,		/* display */	Pcibcmmedia	= 4,		/* multimedia */	Pcibcmem	= 5,		/* memory */	Pcibcbridge	= 6,		/* bridge */	Pcibccomm	= 7,		/* simple comms (e.g., serial) */	Pcibcbasesys	= 8,		/* base system */	Pcibcinput	= 9,		/* input */	Pcibcdock	= 0xa,		/* docking stations */	Pcibcproc	= 0xb,		/* processors */	Pcibcserial	= 0xc,		/* serial bus (e.g., USB) */	Pcibcwireless	= 0xd,		/* wireless */	Pcibcintell	= 0xe,		/* intelligent i/o */	Pcibcsatcom	= 0xf,		/* satellite comms */	Pcibccrypto	= 0x10,		/* encryption/decryption */	Pcibcdacq	= 0x11,		/* data acquisition & signal proc. */}; /* ccru (sub-class code) values; common cases only */enum {	/* mass storage */	Pciscscsi	= 0,		/* SCSI */	Pciscide	= 1,		/* IDE (ATA) */ 	/* network */	Pciscether	= 0,		/* Ethernet */ 	/* display */	Pciscvga	= 0,		/* VGA */	Pciscxga	= 1,		/* XGA */	Pcisc3d		= 2,		/* 3D */ 	/* bridges */	Pcischostpci	= 0,		/* host/pci */	Pciscpcicpci	= 1,		/* pci/pci */ 	/* simple comms */	Pciscserial	= 0,		/* 16450, etc. */	Pciscmultiser	= 1,		/* multiport serial */ 	/* serial bus */	Pciscusb	= 3,		/* USB */}; enum {					/* type 0 pre-defined header */	PciCIS		= 0x28,		/* cardbus CIS pointer */	PciSVID		= 0x2C,		/* subsystem vendor ID */	PciSID		= 0x2E,		/* cardbus CIS pointer */	PciEBAR0	= 0x30,		/* expansion ROM base address */	PciMGNT		= 0x3E,		/* burst period length */	PciMLT		= 0x3F,		/* maximum latency between bursts */}; enum {					/* type 1 pre-defined header */	PciPBN		= 0x18,		/* primary bus number */	PciSBN		= 0x19,		/* secondary bus number */	PciUBN		= 0x1A,		/* subordinate bus number */	PciSLTR		= 0x1B,		/* secondary latency timer */	PciIBR		= 0x1C,		/* I/O base */	PciILR		= 0x1D,		/* I/O limit */	PciSPSR		= 0x1E,		/* secondary status */	PciMBR		= 0x20,		/* memory base */	PciMLR		= 0x22,		/* memory limit */	PciPMBR		= 0x24,		/* prefetchable memory base */	PciPMLR		= 0x26,		/* prefetchable memory limit */	PciPUBR		= 0x28,		/* prefetchable base upper 32 bits */	PciPULR		= 0x2C,		/* prefetchable limit upper 32 bits */	PciIUBR		= 0x30,		/* I/O base upper 16 bits */	PciIULR		= 0x32,		/* I/O limit upper 16 bits */	PciEBAR1	= 0x28,		/* expansion ROM base address */	PciBCR		= 0x3E,		/* bridge control register */}; enum {					/* type 2 pre-defined header */	PciCBExCA	= 0x10,	PciCBSPSR	= 0x16,	PciCBPBN	= 0x18,		/* primary bus number */	PciCBSBN	= 0x19,		/* secondary bus number */	PciCBUBN	= 0x1A,		/* subordinate bus number */	PciCBSLTR	= 0x1B,		/* secondary latency timer */	PciCBMBR0	= 0x1C,	PciCBMLR0	= 0x20,	PciCBMBR1	= 0x24,	PciCBMLR1	= 0x28,	PciCBIBR0	= 0x2C,		/* I/O base */	PciCBILR0	= 0x30,		/* I/O limit */	PciCBIBR1	= 0x34,		/* I/O base */	PciCBILR1	= 0x38,		/* I/O limit */	PciCBSVID	= 0x40,		/* subsystem vendor ID */	PciCBSID	= 0x42,		/* subsystem ID */	PciCBLMBAR	= 0x44,		/* legacy mode base address */}; typedef struct Pcisiz Pcisiz;struct Pcisiz{	Pcidev*	dev;	int	siz;	int	bar;}; typedef struct Pcidev Pcidev;struct Pcidev{	int	tbdf;			/* type+bus+device+function */	ushort	vid;			/* vendor ID */	ushort	did;			/* device ID */ 	ushort	pcr; 	uchar	rid;	uchar	ccrp;	uchar	ccru;	uchar	ccrb;	uchar	cls;	uchar	ltr; 	struct {		ulong	bar;		/* base address */		int	size;	} mem[6]; 	struct {		ulong	bar;			int	size;	} rom;	uchar	intl;			/* interrupt line */ 	Pcidev*	list;	Pcidev*	link;			/* next device on this bno */ 	Pcidev*	bridge;			/* down a bus */	struct {		ulong	bar;		int	size;	} ioa, mema; 	int	pmrb;			/* power management register block */}; #define PCIWINDOW	0#define PCIWADDR(va)	(PADDR(va)+PCIWINDOW)#define ISAWINDOW	0#define ISAWADDR(va)	(PADDR(va)+ISAWINDOW) /* SMBus transactions */enum{	SMBquick,		/* sends address only */ 	/* write */	SMBsend,		/* sends address and cmd */	SMBbytewrite,		/* sends address and cmd and 1 byte */	SMBwordwrite,		/* sends address and cmd and 2 bytes */ 	/* read */	SMBrecv,		/* sends address, recvs 1 byte */	SMBbyteread,		/* sends address and cmd, recv's byte */	SMBwordread,		/* sends address and cmd, recv's 2 bytes */}; typedef struct SMBus SMBus;struct SMBus {	QLock;		/* mutex */	Rendez	r;	/* rendezvous point for completion interrupts */	void	*arg;	/* implementation dependent */	ulong	base;	/* port or memory base of smbus */	int	busy;	void	(*transact)(SMBus*, int, int, int, uchar*);}; /* * PCMCIA support code. */ typedef struct PCMslot		PCMslot;typedef struct PCMconftab	PCMconftab; /* * Map between ISA memory space and PCMCIA card memory space. */struct PCMmap {	ulong	ca;			/* card address */	ulong	cea;			/* card end address */	ulong	isa;			/* ISA address */	int	len;			/* length of the ISA area */	int	attr;			/* attribute memory */	int	ref;}; /* configuration table entry */struct PCMconftab{	int	index;	ushort	irqs;		/* legal irqs */	uchar	irqtype;	uchar	bit16;		/* true for 16 bit access */	struct {		ulong	start;		ulong	len;	} io[16];	int	nio;	uchar	vpp1;	uchar	vpp2;	uchar	memwait;	ulong	maxwait;	ulong	readywait;	ulong	otherwait;}; /* a card slot */struct PCMslot{	Lock;	int	ref; 	void	*cp;		/* controller for this slot */	long	memlen;		/* memory length */	uchar	base;		/* index register base */	uchar	slotno;		/* slot number */ 	/* status */	uchar	special;	/* in use for a special device */	uchar	already;	/* already inited */	uchar	occupied;	uchar	battery;	uchar	wrprot;	uchar	powered;	uchar	configed;	uchar	enabled;	uchar	busy; 	/* cis info */	ulong	msec;		/* time of last slotinfo call */	char	verstr[512];	/* version string */	int	ncfg;		/* number of configurations */	struct {		ushort	cpresent;	/* config registers present */		ulong	caddr;		/* relative address of config registers */	} cfg[8];	int	nctab;		/* number of config table entries */	PCMconftab	ctab[8];	PCMconftab	*def;	/* default conftab */ 	/* memory maps */	Lock	mlock;		/* lock down the maps */	int	time;	PCMmap	mmap[4];	/* maps, last is always for the kernel */};